The method pre-forming with CNC machinery by adopting high molecular weight polyethylene (UHMW-PE) profile has the advantages of less attrition, self-lubricating, shock resistance and corrosion resistance. UHMW-PE is the thermoplastic engineering plastics with the viscosity average molecular weigh more than 1.5 million aggregated by ethylene and butadiene monomer under the action of catalytic agent. It is characterized by high integrated properties, wear resistance, low temperature resistance, corrosion resistance, self-lubricating and shock resistance, especially, it has high shock resistance under low temperature, highest among the known plastics, is able to serve under -269����+80�� for long time, and is named ��amazing�� plastic.
9th year